CalcFuel

SEO Tools & Calculators

Free tools to measure and improve your organic marketing performance — from page speed to NPS to marketing health.

Measuring What Drives Organic Growth

SEO is often discussed in terms of keyword rankings and backlinks — but the metrics that translate to revenue are conversion rate, traffic quality, and page experience. This set of tools helps you quantify the business impact of technical and content SEO improvements, so you can prioritise the work that actually moves the needle.

Why Page Speed Is Your Highest-ROI SEO Investment

Page speed is the only SEO factor that directly affects both your search rankings (via Core Web Vitals) and your conversion rate simultaneously. Google's research shows a 1-second improvement in load time can increase conversions by 7%. For sites with thousands of monthly visitors, this compounds quickly into significant revenue — without increasing ad spend or content volume. Use the Website Speed Impact Calculator to quantify your specific opportunity.

NPS and Marketing Health as Growth Indicators

Net Promoter Score measures customer satisfaction and loyalty — a leading indicator of organic growth through referrals and word-of-mouth. Businesses with NPS above 50 typically see 2–3× the organic referral traffic of those below 20. Pair NPS tracking with the Marketing Health Check to identify systemic gaps in your marketing foundation that may be suppressing organic growth.